Censor.NET reports citing Belfast Telegraph.
"Some people suggest to us that we should actually be removing our nuclear deterrent. This has been a vital part of our national security and defense for nearly half a century now and it'd be quite wrong for us to go down that particular path," she said delivering her first speech in the parliament.
Before voting to replace the submarine fleet which carries the Trident missiles, Mrs May insisted that threats to the UK from countries such as Russia and North Korea "remain very real" while also warning about the possibility of future threats.
In her speech, the PM also accused Russian President Vladimir Putin of desire to undermine the norms of international law, BBC reports.
According to her, as it was seen by the example of the illegal annexation of Crimea, there was no doubt of Putin's desire to undermine the international system based on the rules in order to move forward in the pursuit of his own interests.
Theresa May's predecessor David Cameron expected the MPs to vote for the issue of modernization of the four nuclear submarines, which are assumed until 2030 to replace the existing Vanguard class submarines in the new class Successor.